NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 217-850 | EXIANT COMMUNICATIONS LLC | 114J | CHAMPAURBN | IL | |
| 217-851 | METROPCS, INC. | 5562 | LITCHFIELD | IL | |
| 217-852 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | DALLASCITY | IL | |
| 217-853 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DECATUR | IL | |
| 217-854 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | CARLINVL | IL | |
| 217-855 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DECATUR | IL | |
| 217-856 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | HUMBOLDT | IL | |
| 217-857 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | TEUTOPOLIS | IL | |
| 217-862 | ILLINOIS BELL TEL CO | 9329 | SPRINGFLD | IL | |
| 217-863 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | BONDVILLE | IL | |
| 217-864 | FRONTIER NORTH, INC. - IL | 1015 | MOUNT ZION | IL | |
| 217-865 | FRONTIER NORTH, INC. - IL | 1015 | ELWIN | IL | |
| 217-866 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHAMPAURBN | IL | |
| 217-867 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | PESOTUM | IL | |
| 217-868 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 1183 | SHUMWAY | IL | |
| 217-869 | NUSO, LLC | 551G | JACKSONVL | IL | |
| 217-870 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | LINCOLN | IL | |
| 217-871 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | LINCOLN | IL | |
| 217-872 | ILLINOIS BELL TEL CO | 9329 | DECATUR | IL | |
| 217-873 | MOULTRIE INDEPENDENT TEL. CO. | 1060 | LOVINGTON | IL | |
| 217-874 | FRONTIER NORTH, INC. - IL | 1015 | DALTONCITY | IL | |
| 217-875 | ILLINOIS BELL TEL CO | 9329 | DECATUR | IL | |
| 217-876 | ILLINOIS BELL TEL CO | 9329 | DECATUR | IL | |
| 217-877 | ILLINOIS BELL TEL CO | 9329 | DECATUR | IL | |
| 217-879 | ILLINOIS CONSOLIDATED TEL. CO. | 1037 | OWANECO | IL | |
| 217-881 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | 846F | SHUMWAY | IL | |
| 217-882 | FRONTIER NORTH, INC. - IL | 1015 | MURRAYVL | IL | |
| 217-883 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | JACKSONVL | IL | |
| 217-884 | FRONTIER NORTH, INC. - IL | 1015 | REDMON | IL | |
| 217-885 | ILLINOIS BELL TEL CO | 9329 | BURTON | IL | |
| 217-886 | FRONTIER NORTH, INC. - IL | 1015 | LITERBERRY | IL | |
| 217-887 | FRONTIER NORTH, INC. - IL | 1015 | METCALF | IL | |
| 217-889 | CLARKSVILLE MUTUAL TEL. CO. | 0990 | CLARKSVL | IL | |
| 217-891 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | IL | |
| 217-892 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | RANTOUL | IL | |
| 217-893 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | RANTOUL | IL | |
| 217-894 | FRONTIER NORTH, INC. - IL | 1015 | CLAYTON | IL | |
| 217-895 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | NEOGA | IL | |
| 217-896 | FRONTIER NORTH, INC. - IL | 1015 | HOMER | IL | |
| 217-897 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | 1000 | FISHER | IL | |
| 217-898 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHAMPAURBN | IL | |
| 217-899 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | IL | |
| 217-901 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BLUE MOUND | IL | |
| 217-903 | VONAGE AMERICA LLC | 197D | CHAMPAURBN | IL | |
| 217-906 | TELNYX LLC | 073H | BUFFALO | IL | |
| 217-910 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ASSUMPTION | IL | |
| 217-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | IL | |
| 217-913 | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | STONINGTON | IL | |
| 217-915 | ONVOY, LLC | 224C | AUBURN | IL | |
| 217-917 | TELNYX LLC | 073H | DECATUR | IL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.